Library: take a look inside

Hi guys,

i have a launchpad and i program it with Energia.

The first demo i tried is the fading demo what uses funktions like pinmode() or analogwire() and defines like GREEN_LED.

I think Energia is a pretty nice IDE and I still wanne use it to program my Stellaris Launchpad.

But I wanna have a look inside the libraries. First to see what perifery it uses (Does analogWire use a timer and what timer?) and how (I wanna lern.).

Is somewhere descriped how the libraries work?

Are the sorcecodes in the Energia folders?

What library has implemented the functions setup() and loop()? I want back to my main-function. ;-)

Can I implement the main-functions without any problem?

Thank you very much

Fabian